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87019486404 = 2237251623867
BaseRepresentation
bin101000100001011000…
…0111111110011000100
322022121112111221002220
41101002300333303010
52411203442031104
6103550505332340
76200265300354
oct1210260776304
9268545457086
1087019486404
11339a5260114
1214a467970b0
13828a4a1476
1442d7128b64
1523e48867d9
hex1442c3fcc4

87019486404 has 12 divisors (see below), whose sum is σ = 203045468304. Its totient is φ = 29006495464.

The previous prime is 87019486381. The next prime is 87019486427. The reversal of 87019486404 is 40468491078.

It is an interprime number because it is at equal distance from previous prime (87019486381) and next prime (87019486427).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3625811922 + ... + 3625811945.

It is an arithmetic number, because the mean of its divisors is an integer number (16920455692).

Almost surely, 287019486404 is an apocalyptic number.

It is an amenable number.

87019486404 is an abundant number, since it is smaller than the sum of its proper divisors (116025981900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87019486404 is a wasteful number, since it uses less digits than its factorization.

87019486404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251623874 (or 7251623872 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 87019486404 in words is "eighty-seven billion, nineteen million, four hundred eighty-six thousand, four hundred four".

Divisors: 1 2 3 4 6 12 7251623867 14503247734 21754871601 29006495468 43509743202 87019486404